Reaksi Esterifikasi Hasil Pirolisis Waste Cooking Oil (WCO) Menggunakan Katalis ZEOLIT HY, H-Al-MCM-41, Dan SO4/Al-MCM-41.

Kusnawati, Lia (2022) Reaksi Esterifikasi Hasil Pirolisis Waste Cooking Oil (WCO) Menggunakan Katalis ZEOLIT HY, H-Al-MCM-41, Dan SO4/Al-MCM-41. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Zeolit NaY dan Al-MCM-41 telah berhasil disintesis dari kaolin Bangka sebagai sumber utama silika dan alumina. Zeolit NaY disintesis dengan metode hidrotermal satu tahap, sedangkan Al-MCM-41 disintesis dengan metode hidrotermal dua tahap dan ditambahkan CTABr sebagai pengarah struktur mesopori. Keasaman dari katalis zeolit NaY dan Al-MCM-41 ditingkatkan dengan reaksi pertukaran kation menjadi zeolit HY dan H-Al-MCM-41. Al-MCM-41 dimodifikasi dengan metode impregnasi basah menggunakan larutan H2SO4 menjadi SO4/Al-MCM-41. Hasil karakterisasi XRD dari zeolit NaY menunjukkan fase kristalin, sedangkan Al-MCM-41 dan SO4/Al-MCM-41 menunjukkan fase amorf. Hasil karakterisasi FTIR menunjukkan vibrasi yang sesuai dengan zeolit NaY, Al-MCM-41 dan SO4/Al-MCM-41. Karakterisasi SEM menunjukkan bentuk morfologi dari zeolit NaY berupa balok dengan aglomerasi, Al-MCM-41 berupa batang dengan bentuk tepi tidak beraturan, sedangkan SO4/Al-MCM-41 berupa gumpalan dan bentuk tidak beraturan karena terdapat dominasi aglomerasi. Semua padatan hasil sintesis diaplikasikan sebagai katalis asam dalam reaksi esterifikasi pada hasil pirolisis WCO. Hasil reaksi menunjukkan bahwa konversi angka asam menggunakan zeolit HY, H-Al-MCM-41, SO4/Al-MCM-41 dan H2SO4 secara berturut-turut sebesar 34,13%; 41,25%; 94,10%; dan 97,82%. SO4/Al-MCM-41 menunjukkan aktivitas katalitik yang paling tinggi hampir mendekati aktivitas katalitik dari H2SO4. Konversi angka asam yang paling baik dari katalis SO4/Al-MCM-41 diperoleh dengan jumlah katalis sebesar 4% berat terhadap hasil pirolisis WCO sebesar 95,89%. Angka asam berkurang dari 154,73 mgKOH/g menjadi 6,35 mgKOH/g.
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Zeolite NaY and Al-MCM-41 have been successfully synthesized from Bangka kaolin as the main source of silica and alumina. Zeolite NaY was synthesized by a single-stage hydrothermal method, while Al-MCM-41 was synthesized by a two-stage hydrothermal method with CTABr as a mesoporous structure agent. The acidity of zeolite NaY and Al-MCM-41 was increased by a cation exchange step to become zeolite HY and H-Al-MCM-41. Al-MCM-41 was modified by wet impregnation method using H2SO4 solution become SO4/Al-MCM-41. The XRD characterization of zeolite NaY showed a crystalline phase, while Al-MCM-41 and SO4/Al-MCM-4 showed an amorphous phases. The results of the FTIR characterization showed the appropriate vibrations for the zeolite NaY, Al-MCM-41 and SO4/Al-MCM-41. SEM characterization showed the morphology of zeolite NaY in the form of beams with agglomeration, Al-MCM-41 in the form of rod shape with irregular edges, while SO4/Al-MCM-41 in the form of irregular shape and there was dominance of agglomeration. All synthesized were applied as acid catalysts in the esterification reaction of pyrolysis oil from WCO. The results of reaction showed that the conversion acid value using zeolite HY, H-Al-MCM-41, SO4/Al-MCM-41 and H2SO4 respectively, was 34.13%, 41.25%, 94.10%, and 97.82%. SO4/Al-MCM-41 showed the highest catalytic activity, almost close to the catalytic activity of H2SO4. The best conversion of acid value using SO4/Al-MCM-41 catalyst was 95.89%. It was obtained with catalyst amount of 4% weight to pyrolysis oil from WCO. The acid value was reduced from 154.73 mgKOH/g to 6.35 mgKOH/g.

Item Type:	Thesis (Other)
Additional Information:	RSKi 660.299 Kus r-1 2022
Uncontrolled Keywords:	Angka asam, Al-MCM-41, Katalis, Minyak Pirolisis, Reaksi Esterifikasi, Zeolit NaY. Acid value, Al-MCM-41, Catalyst, Esterification reaction, Pyrolysis oil, Zeolite NaY.
Subjects:	Q Science > QD Chemistry > QD281 Pyrolysis
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	05 May 2026 02:44
Last Modified:	07 May 2026 08:29
URI:	http://repository.its.ac.id/id/eprint/132978

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